Zimmerman has had a violent and tumultuous run since a jury found him not guilty of second-degree murder or manslaughter in Martin’s death.. He has been arrested multiple times on a variety of violence and weapons charges. He has taken on an air of machismo hubris, stating in March that he doesn’t feel bad about killing the teen because it was part of God’s plan for him.

In a Friday morning Tweet, Zimmerman referred to himself as “teflon.” In others, he expresses dislike for President Barack Obama with oblique insults to the president and Mike Brown, the unarmed Ferguson teenager killed by white police officer Darren Wilson last year. Zimmerman claimed Brown and Vester Flanagan, the man accused of killing two WDBJ reporters on air Wednesday would be Obama’s sons.